Hot water-repellent and mechanically durable superhydrophobic mesh for oil/water separation

2018 ◽  
Vol 512 ◽  
pp. 567-574 ◽  
Author(s):  
Min Cao ◽  
Xiaomin Luo ◽  
Huijun Ren ◽  
Jianyan Feng
Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 442 ◽  
Author(s):  
Mingguang Yu ◽  
Qing Wang ◽  
Wenxin Yang ◽  
Yonghang Xu ◽  
Min Zhang ◽  
...  

In this paper, we present a facile and efficient strategy for the fabrication of magnetic, durable, and superhydrophobic cotton for oil/water separation. The superhydrophobic cotton functionalized with Fe3O4 magnetic nanoparticles was prepared via the in situ coprecipitation of Fe2+/Fe3+ ions under ammonia solution on cotton fabrics using polyvinylpyrrolidone (PVP) as a coupling agent and hydrophobic treatment with tridecafluorooctyl triethoxysilane (FAS) in sequence. The as-prepared cotton demonstrated excellent superhydrophobicity with a water contact angle of 155.6° ± 1.2° and good magnetic responsiveness. Under the control of the external magnetic field, the cotton fabrics could be easily controlled to absorb the oil from water as oil absorbents, showing high oil/water separation efficiency, even in hot water. Moreover, the cotton demonstrated remarkable mechanical durable properties, being strongly friction-resistant against sandpaper and finger wipe, while maintaining its water repellency. This study developed a novel and efficient strategy for the construction of magnetic, durable, and superhydrophobic biomass-based adsorbent for oil/water separation, which can be easily scaled up for practical oil absorption.


Nanoscale ◽  
2016 ◽  
Vol 8 (14) ◽  
pp. 7638-7645 ◽  
Author(s):  
Jian Li ◽  
Ruimei Kang ◽  
Xiaohua Tang ◽  
Houde She ◽  
Yaoxia Yang ◽  
...  

Langmuir ◽  
2021 ◽  
Author(s):  
Yelan Xiao ◽  
Shun-Cheung Cheng ◽  
Yongyi Feng ◽  
Zhen Shi ◽  
Zhenjia Huang ◽  
...  

2019 ◽  
Vol 43 (21) ◽  
pp. 8075-8084 ◽  
Author(s):  
Nainsi Saxena ◽  
Santanu Paria

Superhydrophobic surfaces are practically important for several real-life applications such as self-cleaning, anti-corrosion and drag reducing surfaces, non-wetting cloths, oil–water separation, water-repellent surfaces and microfluidic devices, etc.


2020 ◽  
Vol 512 ◽  
pp. 144837 ◽  
Author(s):  
Haihong Gu ◽  
Guoqing Li ◽  
Pingping Li ◽  
Hanlin Liu ◽  
Tavonga Trevor Chadyagondo ◽  
...  

2017 ◽  
Vol 82 (3) ◽  
pp. 817-826 ◽  
Author(s):  
Jian Li ◽  
Zhihong Zhao ◽  
Ruimei Kang ◽  
Yan Zhang ◽  
Weizhong Lv ◽  
...  

2021 ◽  
Author(s):  
Md. Ibrahim H. Mondal ◽  
Joykrisna Saha

Abstract C6-Fluorocarbon (FC)-dendrimer has been applied on cotton knit fabric for developing water repellent, self-cleaning, oil-water separation, acid-resistant, antibacterial, UV resistant and flame retardant property while maintaining acceptable levels of comfort for wearers. The C6-Fluorocarbon (FC)-dendrimer coated 100% cotton single jersey knitted fabric samples were prepared using “pad-dry-cure” method, and characterized and tested for comfort and other textile properties. The 90 g/L and 100 g/L FC-dendrimer treated cotton fabrics provided excellent water repellency, oil-water separation and self-cleaning performance. But air permeability and thermal conductivity were 13%, 15%, and 40%, 54% lower, respectively, than those of untreated fabrics. The presence of FC-dendrimer in the treated fabric was confirmed by FTIR, SEM, EDS and XRD analyses. SEM analysis was employed to study the morphology of deposited FC-dendrimer particles on the fabric surface. Thermal behaviors were evaluated by TGA and DTA. The FC-dendrimer-treated fabric also showed promise as a UV ray absorber, antimicrobial activity, acid resistance and flame retardant property. Overall, the result suggests that FC-dendrimer can be a valuable ingredient in the manufacture of multifunctional products.


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